TIFU by revealing a kink to a co-worker.
I (M 20) work in hospitality as a dishwasher and I see a co-worker (F 25) in the doorway of the room as I'm coming back from returning plates to the kitchen. We have a good working relationship, jokes and poking fun at each other.
She's there with a spool of duct-tape trying to find the end of it. To note: I had seen this earlier in the staff room and thought if anyone brought it out I would make a joke like: "Oh good, now we have a way of shutting *such and such* up". Harmless and chuckle-worthy but that's not what I did.
As I approached her, completely wordless, I put my arms out in front of me with my wrists together as if showing her what to do with the tape. The action was quick and I just carried on walking towards the dishes after putting my arms down. It didn't even cross my mind the implications of the action. I went back to drying dishes as she gasped with her mouth agape and glared at me. It took a moment for it to click and when it did, my face burned.
"Oh no." I said, "I didn't mean-- I don't actually know what I meant."
She was awkward about it at first as we both laughed at the absurdity of it and I apologised, trying to salvage the situation. Spoiler: I didn't salvage it. Before long, every server knew what I had done and joined in on the laughter, the story even made it to the chefs who will NEVER let me forget it.
After we all calmed down, I made a more genuine apology to her and said that I acted on impulse and apologise if it made her uncomfortable and I just wanted to do something to make her laugh. She smiled and said: "You have a weird way of going about it."
For the rest of the shift anytime she gave me any dishes she called me a 'good boy' and teased me about being a freak, as well as playfully acting awkward by covering her eyes or averting her gaze whenever we passed each other.
TL;DR: My virgin ass asked for a co-worker to tie me up, everyone knows and they'll never let me live it down.